Diphasiastrum oellgaardii - a new species in the flora of the Czech Republic

So far, only five species of Diphasiastrum have been reported from the Czech Republic, i.e. D. alpinum, D. tristachyum, D. complanatum, D. issleri, and D. zeilleri. The study of herbarium material (PRC) revealed one more species: Diphasiastrum oellgaardii Stoor, Boudrie,Jérôme, Horn et Bennert. This species was collected in the central part of the Šumava Mts., SW Bohemia. The localities recorded in the Czech Republicrepresent the easternmost limits of the known distribution range of the species.